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meta-renesas-ai

This OpenEmbedded/Yocto layer, nicknamed the "RZ/G AI BSP", adds FOSS AI tools support to the Renesas RZ/G2, RZ/G2L and RZ/V2L families of SoCs and reference platforms.

This meta-layer should be used with the official Renesas RZ/G2 Yocto Poky BSP based on the CIP Kernel:
URI: https://github.com/renesas-rz/meta-renesas.git
tag: BSP-3.0.6-update3 (b028eb836091fcfd8873c49ba46a9817b290105f)

Supported Frameworks/Versions

Framework Version Parser(s) Inference Hardware
ArmNN v24.05 ONNX (v1.6.0)
TensorFlow Lite (v2.15.1)
CPU
GPU (smarc-rzg2l, smarc-rzg2lc, smarc-rzv2l)
ONNX Runtime v1.8.0 ONNX CPU
TensorFlow Lite v2.15.1 TensorFlow Lite CPU

Supported Embedded Platforms

SoC Platform
Renesas RZ/G2H HopeRun hihope-rzg2h
Renesas RZ/G2M HopeRun hihope-rzg2m
Renesas RZ/G2N HopeRun hihope-rzg2n
Renesas RZ/G2E Silicon Linux ek874
Renesas RZ/G2L Renesas smarc-rzg2l evk
Renesas RZ/G2LC Renesas smarc-rzg2lc evk
Renesas RZ/G2UL Renesas smarc-rzg2ul evk
Renesas RZ/V2L Renesas smarc-rzv2l evk

Documentation

For each AI tool, please refer to the documentaion provided in docs.

Dependencies

This meta-layer depends on the following:

Patches for other meta-layers

In order to build meta-renesas-ai some external meta-layers need to be patched.

The patches below should be applied to the relevant meta-layer before a build is started. This is done automatically by the build-rzg-ai-bsp.sh build script.

meta-qt5

  • 0001-layer.conf-Add-LAYERSERIES_COMPAT-for-dunfell.patch

Build Instructions

Below are the instructions to follow if you want to build the RZ/G AI BSP manually. Alternitively the scripts in the scripts directory can be used to automate the process.

1) OS Dependencies

The RZ/G BSP is based on Yocto Dunfell. As such, a build system supported by Dunfell should be used. We test with Ubuntu 20.04 LTS.

Read the Yocto System Requirements for full details.

2) Download Source Code

git clone https://git.yoctoproject.org/poky
cd poky
git checkout dunfell-23.0.31
cd ..

git clone https://git.openembedded.org/meta-openembedded
cd meta-openembedded
git checkout daa4619fe3fbf8c28f342c4a7163a84a330f7653
cd ..

git clone https://git.yoctoproject.org/meta-gplv2
cd meta-gplv2
git checkout 60b251c25ba87e946a0ca4cdc8d17b1cb09292ac
cd ..

git clone  https://github.com/meta-qt5/meta-qt5
cd meta-qt5
git checkout c1b0c9f546289b1592d7a895640de103723a0305
git am ../meta-renesas-ai/patches/meta-qt5/*.patch
cd ..

git clone https://github.com/renesas-rz/meta-renesas
cd meta-renesas
git checkout BSP-3.0.6-update2
cd ..

3) Download Proprietary Libraries

The graphics and multimedia libraries can be downloaded from the Renesas website. This page lists the packages for the latest RSZ/G BSP, however direct links are below for the versions tested with this project. Note that an account will be needed to download the libraries as an ELA must be signed.

For hihope-rzg2h, hihope-rzg2m, hihope-rzg2n, ek874:

For smarc-rzg2l, smarc-rzv2l:

For smarc-rzg2lc:

No packages are required for devices not listed above.

The above zip files should be extracted, and the meta-rz-features*.tar.gz archives found within should be extracted to the working directory alongside the other meta-layers in a directory called meta-rz-features.

4) Configure Build

Once all code has been downloaded, the working directory should look like this:

$ tree -L 1
.
├── meta-gplv2
├── meta-openembedded
├── meta-qt5
├── meta-renesas
├── meta-renesas-ai
├── meta-rz-features
└── poky

Initialize build environment

# For hihope-rzg2h, hihope-rzg2m, hihope-rzg2n, ek874:
TEMPLATECONF=$PWD/meta-renesas/meta-rzg2h/docs/template/conf/ source poky/oe-init-build-env build

# For smarc-rzg2l, smarc-rzg2lc, smarc-rzg2ul:
TEMPLATECONF=$PWD/meta-renesas/meta-rzg2l/docs/template/conf/ source poky/oe-init-build-env build

# For smarc-rzv2l:
TEMPLATECONF=$PWD/meta-renesas/meta-rzv2l/docs/template/conf/ source poky/oe-init-build-env build

Configure bblayers.conf

# All platforms
bitbake-layers add-layer ../meta-qt5
bitbake-layers add-layer ../meta-renesas-ai

# For hihope-rzg2h, hihope-rzg2m, hihope-rzg2n, ek874, smarc-rzg2l, smarc-rzv2l:
bitbake-layers add-layer ../meta-rz-features/meta-rz-codecs
bitbake-layers add-layer ../meta-rz-features/meta-rz-graphics

# For smarc-rzg2lc:
bitbake-layers add-layer ../meta-rz-features/meta-rz-graphics

Configure local.conf

# Disable CIP Core support (we want to use the latest package versions)
echo 'CIP_MODE = "None"' >> conf/local.conf

# To add ArmNN support
echo 'IMAGE_INSTALL_append = " armnn-dev armnn-examples armnn-tensorflow-lite-dev armnn-onnx-dev armnn-onnx-examples tensorflow-lite-python"' >> conf/local.conf
echo 'IMAGE_INSTALL_append = " tensorflow-lite-staticdev tensorflow-lite-dev tensorflow-lite-benchmark armnn-benchmark"' >> conf/local.conf
echo 'IMAGE_INSTALL_append = " tensorflow-lite-delegate-benchmark"' >> conf/local.conf

# To add ONNX Runtime support
echo 'IMAGE_INSTALL_append = " onnxruntime"' >> conf/local.conf
echo 'IMAGE_INSTALL_append = " onnxruntime-benchmark"' >> conf/local.conf

# To add TensorFlow Lite support
echo 'IMAGE_INSTALL_append = " tensorflow-lite-staticdev tensorflow-lite-dev tensorflow-lite-python"' >> conf/local.conf
echo 'IMAGE_INSTALL_append = " tensorflow-lite-benchmark"' >> conf/local.conf

# To include test scripts
echo 'IMAGE_INSTALL_append = " ai-tests"' >> conf/local.conf

5) Start Build

To build the complete BSP:

# PLATFORM = hihope-rzg2h, hihope-rzg2m, hihope-rzg2n, ek874, smarc-rzg2l, smarc-rzg2lc, smarc-rzg2ul or smarc-rzv2l
MACHINE=${PLATFORM} bitbake core-image-qt

To build the SDK:

# PLATFORM = hihope-rzg2h, hihope-rzg2m, hihope-rzg2n, ek874, smarc-rzg2l, smarc-rzg2lc, smarc-rzg2ul or smarc-rzv2l
MACHINE=${PLATFORM} bitbake core-image-qt -c populate_sdk

6) Build Output

Once the build is complete, all bootloader, kernel, device tree and filesystem binaries can be found in the build/tmp/deploy/images/[machine]/ directory.

License and manifest information can be found in the build/tmp/deploy/licenses/ directory.

Helper Scripts

Build Script

A simple build script has been created to manage the build process.
Before running the script you will need to download the relevant proprietary libraries from the Renesas website. See the Renesas BSP readme file for details on how to do this.

Run ./scripts/build-rzg-ai-bsp.sh -h to get an overview on how to use the script.

Configuration Script

A simple configuration script has been created to set up the configuration files and add the necessary dependencies.
This script is used automatically by build-rzg-ai-bsp.sh but can be run independently if required.

Run ./scripts/set-config-files.sh -h to get an overview on how to use the script.

LAVA Test Job Submission Script

The 'submit-lava-job.sh' script has been created to manage the creation and submission of LAVA test jobs. These test jobs run a number of test cases to verify functionality of the AI BSP. The test scripts are provided by the ai-tests recipe.

Run ./scripts/submit-lava-job.sh -h to get an overview on how to use the script.

The script depends on the ${BUILD_JOB_ID} variable to be set in the environment, as it uses this in order to set the correct URL to the GitLab CI build artifacts that LAVA needs to download. See .gitlab-ci.yml for an example of how this is done in this project.

If ${BUILD_JOB_ID} and ${CI_PROJECT_URL} are set manually it is possible to run this script outside of a GitLab CI environment.

Generate Results Spreadsheet Script

The script gen-benchmark-csv.sh creates a .csv file that contains the AI benchmark performance metrics of a provided LAVA job number or log file.

This script can be used by submit-lava-job.sh by setting the options --gather-benchmarks and --check-results. It can also be run independently if required.

Run ./scripts/gen-benchmark-csv.sh -h to get an overview on how to use the script.


Notes

Proxies
If working behind a proxy, make sure the environment of the shell you are running bitbake from contains HTTP_PROXY and HTTPS_PROXY environment variables, set according to your proxy configuration.

Using Large Models
Due to the limited memory size on some platforms, large pre-trained models could cause out of memory issues. To overcome this memory limitation, a swap file can used.
To include swap support add the following to local.conf:

IMAGE_INSTALL_append = " mkswap"

By default, this will create and enable a 2048 MB swapfile.

If needed, the size of the swap file can be set (in MB) in local.conf:

SWAP_SIZE = "512"

LICENSING

This project is licensed under the terms of the MIT license (please see file COPYING.MIT in this directory for further details).

The configuration files provided in the RZ/G BSP include the following whitelisted licenses that the user should be aware of before using this project:

LICENSE_FLAGS_WHITELIST = " \
	commercial_gstreamer1.0-plugins-ugly commercial_mpeg2dec \
	commercial_gst-plugins-bad commercial_faad2 commercial_faac \
	commercial_gstreamer1.0-libav commercial_ffmpeg commercial_x264 \
"

These are needed to add full video encoding/decoding support to the BSP.

By using this project the user agrees to the terms and conditions from the licenses of the packages that are installed into the final image and that are covered by a commercial license. The user also acknowledges that it's their responsibility to make sure they hold the right to use code protected by commercial agreements, whether the commercially protected packages are selected by Renesas' BSPs or by them.

Finally, the user acknowledges that it's their responsibility to make sure they hold the right to copy, use, modify, and re-distribute the intellectual property offered by this meta-layer.


Send pull requests, patches, comments or questions to:
[email protected].

Maintainer:
Chris Paterson [email protected].